1324728 has 32 divisors (see below), whose sum is σ = 3680400. Its totient is φ = 441504.

The previous prime is 1324721. The next prime is 1324733. The reversal of 1324728 is 8274231.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2851 + ... + 3282.

2^1324728 is an apocalyptic number.

1324728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1324728 is an abundant number, since it is smaller than the sum of its proper divisors (2355672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1324728 is a wasteful number, since it uses less digits than its factorization.

1324728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6148 (or 6138 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 1324728 is about 1150.9682880080. The cubic root of 1324728 is about 109.8269455204.

Adding to 1324728 its reverse (8274231), we get a palindrome (9598959).

The spelling of 1324728 in words is "one million, three hundred twenty-four thousand, seven hundred twenty-eight".